文档介绍:第 卷 第 期 矿 冶
30 5 earch of a complex refractory lead-zinc ore in Jiangxi
YU Xue-wei 1 LUO Jian-an2
(1.Northwest Jiangxi Central Laboratory,Jiangxi Bureau of Geology and Mineral Resources,Jiujiang 332200,Jiangxi,China;
2.Jiangxi Copper Corporation Limited,Nanchang 333000,China)
Abstract:The process mineralogy of lead-zinc ore was studied by automatic mineral parameter detector and
scanning electron microscope.The results show that the main metal minerals of the ore are sulfide such as
sphalerite,galena and pyrite,and the gangue minerals are carbonate rocks.The mineral composition is
complex,which increases the difficulty of valuable metal separation.The main useful elements of the ore
are lead and zinc,the contents are 1.98%and 3.27%,respectively,of which lead in galena accounts for
74.26%,zinc in sphalerite accounts for 64.75%,and the contents of gold and silver are 0.3g/t and
73.5g/t,respectively.The economic value of the ore is high.Galena,sphalerite and pyrite have very fine
embedded particle size,which belongs to the category of medium and fine particles as a whole.In the raw
ore of 0.074mm accounting for 21.45%,the dissociation degrees of galena and sphalerite are 54.8%and
57.8%,respectively,and